^^^I agree with a lot of what you said, except for a few things.
The legs being too long...well, that's because they've been straightened out. Since he's a reptile, his legs would actually be very crooked and bent, so when I animate him, I would just put him in a crouched position. When I do that, his legs look about normal. He's just standing up straight so I can rig him. And as for the wrists, yeah, that was intentional, kind of cartooning that up a bit. And as for his tail being "stiff" it's because it's in a rigid pose until I animate it.
Everything else, I fully agree with. I think his hair turned out really badly, and I never finished it. And his shell is definitely too small, you're right.